Alert archive / North Dakota / Red Flag Warnings in 2018

Red Flag Warning 2, NWS Bismarck, ND

April 28, 201826 counties in North Dakota

NWS Bismarck, ND issued this red flag warning at Apr 28, 2018, 2:40 AM MDT for 26 counties in North Dakota. It took effect at Apr 28, 2018, 11:00 AM MDT. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 28, 2018, 2:40 AM MDT (08:40 UTC)
In effect from
Apr 28, 2018, 11:00 AM MDT
Expired
Apr 28, 2018, 8:00 PM MDT
In force
9 hr
Issued by
NWS Bismarck, ND
All 26 counties

Adams County, ND, Billings County, ND, Bottineau County, ND, Bowman County, ND, Burke County, ND, Burleigh County, ND, Divide County, ND, Dunn County, ND, Emmons County, ND, Golden Valley County, ND, Grant County, ND, Hettinger County, ND, McHenry County, ND, McKenzie County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Mountrail County, ND, Oliver County, ND, Renville County, ND, Sheridan County, ND, Sioux County, ND, Slope County, ND, Stark County, ND, Ward County, ND, Williams County, ND

The radar

The Bismarck radar (KBIS), 118 km from the middle of the area, began a volume at 08:38 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 8.7 hours before the alert went out and 122 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Bismarck Municip, ND at 00:00Z on 2018-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 00:00Z on 2018-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -17 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2492 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
-17 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

901 
WWUS83 KBIS 280840
RFWBIS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Bismarck ND
340 AM CDT Sat Apr 28 2018

...CRITICAL FIRE WEATHER CONDITIONS EXPECTED ACROSS MOST OF
WESTERN AND CENTRAL NORTH DAKOTA TODAY...

.Strong southeast winds will develop across most of western and
central North Dakota today. Sustained winds near 30 mph with gusts
to 45 mph are expected across the far southwest. Elsewhere,
sustained winds of 20-25 mph, with gusts to 35 mph are expected
across much of the northwest and central generally west of North
Dakota Highway 3. Relative humidity will fall this afternoon to
around 20 percent. High temperatures in the mid 60s to near 70 are
forecast under full sunshine. When combined with a lack of 
significant green up, critical fire weather conditions are 
expected.

NDZ031>033-040-041-043-044-281645-
/O.UPG.KBIS.FW.A.0001.180428T1700Z-180429T0200Z/
/O.NEW.KBIS.FW.W.0002.180428T1700Z-180429T0200Z/
Golden Valley-Billings-Stark-Slope-Hettinger-Bowman-Adams-
240 AM MDT Sat Apr 28 2018

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM MDT
THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR MOST OF WESTERN
AND CENTRAL NORTH DAKOTA...

The National Weather Service in Bismarck has issued a Red Flag
Warning, which is in effect from 11 AM this morning to 8 PM MDT
this evening. 

* WIND...Southeast sustained near 30 mph, with gusts to 45 mph
  across the southwest. Southeast sustained winds of 20 to 25 
  mph, with gusts near 35 mph northwest and central.

* HUMIDITY...Around 20 percent.

* TEMPERATURES...Mids 60s to near 70.

* IMPACTS...Any fires that develop may spread rapidly. Outdoor 
  burning is not recommended.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now....or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$

NDZ001>004-009>012-017>022-034-035-042-045-046-281645-
/O.NEW.KBIS.FW.W.0002.180428T1700Z-180429T0200Z/
Divide-Burke-Renville-Bottineau-Williams-Mountrail-Ward-McHenry-
McKenzie-Dunn-Mercer-Oliver-McLean-Sheridan-Morton-Burleigh-Grant-
Sioux-Emmons-
340 AM CDT Sat Apr 28 2018 /240 AM MDT Sat Apr 28 2018/

...RED FLAG WARNING IN EFFECT FROM NOON CDT TO 9 PM CDT/ 11 AM 
MDT TO 8 PM MDT/ THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR
MOST OF WESTERN AND CENTRAL NORTH DAKOTA...

The National Weather Service in Bismarck has issued a Red Flag
Warning, which is in effect today from Noon CDT to 9 PM CDT this
evening /11 AM this morning to 8 PM MDT this evening/

* WIND...Southeast sustained near 30 mph, with gusts to 45 mph
  across the southwest. Southeast sustained winds of 20 to 25 
  mph, with gusts near 35 mph northwest and central.

* HUMIDITY...Around 20 percent.

* TEMPERATURES...Mids 60s to near 70.

* IMPACTS...Any fires that develop may spread rapidly. Outdoor 
  burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now....or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$

PA/ZH
3 follow-up statements
450 
WWUS83 KBIS 281537
RFWBIS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Bismarck ND
1037 AM CDT Sat Apr 28 2018

...CRITICAL FIRE WEATHER CONDITIONS ACROSS WESTERN AND MOST OF 
CENTRAL NORTH DAKOTA TODAY...

.Strong southeast winds sustained to around 25 mph with gusts to 
35 mph will develop across western and central North Dakota today.
The strongest winds will be over far southwest North Dakota, where
gusts will approach 45 mph. In addition, afternoon relative 
humidity values will fall to near 20 percent and the sky will 
remain clear. The gusty winds and low humidity will combine with 
dry vegetation to create critical fire weather conditions today. 


NDZ001>004-009>012-017>022-031>035-040>046-282345-
/O.CON.KBIS.FW.W.0002.180428T1700Z-180429T0200Z/
Divide-Burke-Renville-Bottineau-Williams-Mountrail-Ward-McHenry-
McKenzie-Dunn-Mercer-Oliver-McLean-Sheridan-Golden Valley-
Billings-Stark-Morton-Burleigh-Slope-Hettinger-Grant-Bowman-Adams-
Sioux-Emmons-
1037 AM CDT Sat Apr 28 2018 /937 AM MDT Sat Apr 28 2018/

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT /8 PM MDT/
THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR WESTERN AND MOST
OF CENTRAL NORTH DAKOTA...

* WIND...Southeast sustained near 30 mph, with gusts to 45 mph
  across the southwest. Southeast sustained winds of 25 mph, with
  gusts near 35 mph northwest and central. 

* HUMIDITY...Around 20 percent.

* TEMPERATURES...Mid 60s to around 70.

* IMPACTS...Any fires that develop may spread rapidly. Outdoor 
  burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now....or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$
NH/JV
245 
WWUS83 KBIS 281955
RFWBIS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Bismarck ND
255 PM CDT Sat Apr 28 2018

...CRITICAL FIRE WEATHER CONDITIONS ACROSS WESTERN AND MOST OF
CENTRAL NORTH DAKOTA TODAY...

.Strong southeast winds sustained to around 25 mph with gusts to 
35 mph will develop across western and central North Dakota today.
The strongest winds will be over far southwest North Dakota, 
where gusts will approach 45 mph. In addition, afternoon relative 
humidity values will fall to near 20 percent and the sky will 
remain clear. The gusty winds and low humidity will combine with 
dry vegetation to create critical fire weather conditions today.

NDZ001>004-009>012-017>022-031>035-040>046-290200-
/O.CON.KBIS.FW.W.0002.000000T0000Z-180429T0200Z/
Divide-Burke-Renville-Bottineau-Williams-Mountrail-Ward-McHenry-
McKenzie-Dunn-Mercer-Oliver-McLean-Sheridan-Golden Valley-
Billings-Stark-Morton-Burleigh-Slope-Hettinger-Grant-Bowman-Adams-
Sioux-Emmons-
255 PM CDT Sat Apr 28 2018 /155 PM MDT Sat Apr 28 2018/

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT /8 PM MDT/
THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR WESTERN AND
MOST OF CENTRAL NORTH DAKOTA...

* WIND...Southeast sustained near 30 mph, with gusts to 45 mph 
  across the southwest. Southeast sustained winds of 25 mph, 
  with gusts near 35 mph northwest and central. 

* HUMIDITY...Around 20 percent.

* TEMPERATURES...Mid 60s to around 70.

* IMPACTS...Any fires that develop may spread rapidly. Outdoor 
  burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now....or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$
331 
WWUS83 KBIS 290158
RFWBIS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Bismarck ND
858 PM CDT Sat Apr 28 2018

...RED FLAG WARNING EXPIRES AT 8 PM MDT 9 PM CDT...

.The winds have diminished and the relative humidity is rising as
temperatures begin to fall this evening. The critical fire weather
conditions have subsided and the Red Flag Warning will be allowed
to expire at 9 PM CDT or 8 PM MDT this evening.

NDZ001>004-009>012-017>022-031>035-040>046-290300-
/O.EXP.KBIS.FW.W.0002.000000T0000Z-180429T0200Z/
Divide-Burke-Renville-Bottineau-Williams-Mountrail-Ward-McHenry-
McKenzie-Dunn-Mercer-Oliver-McLean-Sheridan-Golden Valley-
Billings-Stark-Morton-Burleigh-Slope-Hettinger-Grant-Bowman-Adams-
Sioux-Emmons-
858 PM CDT Sat Apr 28 2018 /758 PM MDT Sat Apr 28 2018/

...RED FLAG WARNING WILL EXPIRE AT 9 PM CDT /8 PM MDT/ THIS
EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR WESTERN AND MOST OF
CENTRAL NORTH DAKOTA...

The critical fire weather conditions have subsided and the Red
Flag Warning will be allowed to expire at 9 PM CDT or 8 PM MDT
this evening.

$$
waa

The office that day

Everything else NWS Bismarck, ND issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 28, 2:55 AM MDTWind AdvisoryBISAdams, Bowman, Golden Valley, Slope17 hr

Nearby

Red Flag Warnings in North Dakota, 2018Every red flag warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.